SwiftUISheets.swift

struct ContentView: View {
  enum Sheet: String, Identifiable {
    case addItem, settings
    var id: String { rawValue }
  }
    
  @State private var sheet: Sheet?
    
  var body: some View {
    VStack {
      Button("Add Item", action: { sheet = .addItem })
      Button("Settings", action: { sheet = .settings })
    }
    .sheet(item: $sheet, content: makeSheet)
  }
    
  @ViewBuilder
  func makeSheet(_ sheet: Sheet) -> some View {
    switch sheet {
      case .addItem:
        AddItemView()
      case .settings:
        SettingsView()
    }
  }
}